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Scaling Breakdown: A Signature of Aging

Description: In this article, the authors prove that the Lévy walk is characterized by bilinear scaling. This effect mirrors the existence of a form of aging that does not require the adoption of nonstationary conditions.
Date: July 12, 2002
Creator: Allegrini, Paolo; Bellazzini, Jacopo; Bramanti, G.; Ignaccolo, Massimiliano; Grigolini, Paolo & Yang, J.
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
open access

A random walk version of Robbins' problem: small horizon

Description: This article considers an analogous problem in which the observed random variables are the steps of a symmetric random walk. Assuming continuously distributed step sizes, it describes the optimal stopping rules for the cases n = 2 and n = 3 in two versions of the problem: a "full information" version in which the actual steps of the random walk are disclosed to the decision maker; and a "partial information" version in which only the relative ranks of the positions taken by the random walk are … more
Date: November 17, 2018
Creator: Allaart, Pieter C. & Allen, Andrew
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

Synchronous Chaos, Chaotic Walks, and Characterization of Chaotic States by Lyapunov Spectra

Description: Four aspects of the dynamics of continuous-time dynamical systems are studied in this work. The relationship between the Lyapunov exponents of the original system and the Lyapunov exponents of induced Poincare maps is examined. The behavior of these Poincare maps as discriminators of chaos from noise is explored, and the possible Poissonian statistics generated at rarely visited surfaces are studied.
Date: August 1993
Creator: Albert, Gerald (Gerald Lachian)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Influence of Underlying Random Walk Types in Population Models on Resulting Social Network Types and Epidemiological Dynamics

Description: Epidemiologists rely on human interaction networks for determining states and dynamics of disease propagations in populations. However, such networks are empirical snapshots of the past. It will greatly benefit if human interaction networks are statistically predicted and dynamically created while an epidemic is in progress. We develop an application framework for the generation of human interaction networks and running epidemiological processes utilizing research on human mobility patterns and… more
Date: December 2016
Creator: Kolgushev, Oleg
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Optimal Strategies for Stopping Near the Top of a Sequence

Description: In Chapter 1 the classical secretary problem is introduced. Chapters 2 and 3 are variations of this problem. Chapter 2, discusses the problem of maximizing the probability of stopping with one of the two highest values in a Bernoulli random walk with arbitrary parameter p and finite time horizon n. The optimal strategy (continue or stop) depends on a sequence of threshold values (critical probabilities) which has an oscillating pattern. Several properties of this sequence have been proved by Dr… more
Date: December 2015
Creator: Islas Anguiano, Jose Angel
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

[Photograph of patrons at Casa Rio]

Description: Photograph of patrons dining at Casa Rio, a Fine Mexican Food restaurant, in San Antonio, Texas. Many of the guests are dining with other people, seated at two-seater square tables. This restaurant is located along the River Walk and was taken from across the water.
Date: [1930..]
Creator: Williams, Byrd M. (Byrd Moore), III
Item Type: Refine your search to only Photograph
Location: 29.423529 -98.488148
Partner: UNT Libraries Special Collections

[Photograph of a couple on the San Antonio River Walk]

Description: Photograph of a couple walking down the San Antonio River Walk. They walk towards the camera, the river to their right. The woman stands on the left and wears a short-sleeved dress. She has a purse over one shoulder. The man wears a wide-brimmed hat, a long-sleeved shirt, and dark pants. Two men stand behind the couple, further down the paved walkway, which curves sharply to the right. Stone retaining walls and a landscaped grassy area fill the background. Low-hanging, leafy tree limbs hang dow… more
Date: 194X
Creator: Williams, Byrd M. (Byrd Moore), III
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

[News Script: Marchers]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story.
Date: January 29, 1972, 6:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
open access

[News Script: Walk]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story.
Date: November 9, 1969, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections

[Photograph of the San Antonio riverwalk]

Description: Photograph of a view of the riverwalk in San Antonio, Texas. A restaurant called "Casa Rio Mexican Foods" stands across the river. Tables and chairs are arranged on the restaurant's patio. Tall, leafless trees grow in front of the restaurant. To the right of the restaurant, a stone or concrete bridge crosses the river.
Date: [1946..]
Creator: Williams, Byrd M. (Byrd Moore), III
Item Type: Refine your search to only Photograph
Location: 29.423630 -98.488157
Partner: UNT Libraries Special Collections
open access

[News Script: Cosmonaut]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story.
Date: January 10, 1970, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections

[Photograph of diners at the Casa Rio restaurant]

Description: Photograph of individuals dining outside at the Mexican restaurant, Casa Rio, situated along the river walk in San Antonio, Texas. The words "Casa Rio Fine Mexican Foods" are painted above some windows on the building's stucco wall. Lights are strung up high on either side of a tall tree that grows in the outdoor patio. Plants with large leaves grow along the river's edge on the other side of the patio.
Date: [1940..1970]
Creator: Williams, Byrd M. (Byrd Moore), III
Item Type: Refine your search to only Photograph
Location: 29.423630 -98.488157
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: AIDS walk]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 4:30 P.M.
Date: October 5, 1997
Duration: 44 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections

[Photograph of the outdoor stage of the Arneson River Theater on the River Walk]

Description: Photograph of the outdoor stage of the Arneson River Theater on the River Walk in San Antonio, Texas, taken from across the river. Tall trees with long, hanging branches stand on the right side of the stage. On the left, a walkway leads to a small stone bridge that arches over the river. Many buildings fill the background.
Date: [1940..]
Creator: Williams, Byrd M. (Byrd Moore), III
Item Type: Refine your search to only Photograph
Location: 29.422301 -98.488570
Partner: UNT Libraries Special Collections

[Photograph of a young boy walking his dog]

Description: Overhead photograph of a young boy walking his dog in the shade of a house. The boy is wearing a plaid shirt under some overalls and is standing a couple steps ahead and below his dog. The dog is standing on a step that leads to a stone path but the boy is walking off to the side of the path. Littering the ground by the steps are two cobs of corn. Along the brick path are stones in the dirt off to the side.
Date: [1939..1989]
Creator: Clark, Joe
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
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